We weren't handling MainProgram with no ProgramStmt correctly in
ProgramTree. When building it we were dereferencing an empty optional.
And in ResolveSpecificationParts we were dereferencing a null pointer.
Original-commit: flang-compiler/f18@1bda90d005
Reviewed-on: https://github.com/flang-compiler/f18/pull/827
Using debug build of f18, `omp-resolve01.f90` sometimes crashed in
`OmpVisitor::ResolveOmpObject`. This was because when the designator was
analyzed it could be rewritten from an `ArrayElement` to a `Substring`.
That made the reference to the `Name` inside the designator no longer
valid so the crash happened when it was referenced later. The fix is to
return when the substring is detected so the name is not referenced.
Also, the name returned from `ResolveDesignator` can but null so it must
be checked.
The crash in `RewriteOpenMPLoopConstruct` happened intermittently on
`omp-loop-association.f90`. It happened when the DO construct was the
last element of the block. In that case `block.erase()` returns an
iterator pointing to `block.end()` which must not be dereferenced.
Original-commit: flang-compiler/f18@3299972d04
Reviewed-on: https://github.com/flang-compiler/f18/pull/824
Update the grammar to handle logical abbreviations (e.g. `.A.` for `.AND.`)
when the feature is enabled. Only support `.X.` when both XOR and
logical abbreviations are enabled.
Fix the driver to enable logical abbreviations with the
`-flogical-abbreviations` option. This was already documented in
`documentation/Extensions.md`.
Remove `parser::Expr::XOR` from the parse tree and immediately map
`.XOR.` to `.NEQV.` if that feature is enabled. This was already being
done during expression analysis anyway.
Add `LanguageFeatureControl::GetNames` to return all of the names of
a logical or relational operator, depending on which features are
enabled. Use these in both name resolution and expression analysis.
Add `Not` to `LogicalOperator` to help in those cases.
Fix handling of BOZ literals: A numeric operation with one real or
integer operand and the other a BOZ literal is intrinsic.
Also, unary plus with a BOZ literal operand is also intrinsic.
Original-commit: flang-compiler/f18@956bd50bc7
Reviewed-on: https://github.com/flang-compiler/f18/pull/815
* Use Extremum<T> FoldOperation to fold MIN and MAX
* Fix Extremum<T> FolOperation
* For character, the length is the one of the longest argument.
Define and use `CharacterUtils<Kind>::Resize` helper to do this.
* For array of all types, Extremum<T> with Ordering::Less was
behaving like Ordering::Greater. This is because the default
`ApplyElementwise` for `Operation` was selected and it then
called the Extremum<T> constructor without the ordering
argument (which was an optional defaulted to Greater).
Define a specific handler for Extremum<T> and make the ordering
argument mandatory to prevent this kind of bug to pass
f18 compilation in the futur.
* Fix intrinsic.cc for MIN and MAX
* When provided with two arguments, `Match` was adding an empty
3rd optional actual argument. Later code working on min and
max was not expecting this and failing. The fix prevent this
empty argument to be created by changing the initial size of
`actualForDummy` to actually be the number of dummies that do
not have `Optionality::Repeats`
This commit fixes issue flang-compiler/f18#677.
Original-commit: flang-compiler/f18@acb62f240b
Reviewed-on: https://github.com/flang-compiler/f18/pull/803
Change `AllFortranNames()` to return a `std::vector` rather than a
`std::initialization_list`. The latter doesn't own its underlying
storage and so can't be returned as a value. clang detects this and
issues a warning.
Two tests in `resolve63.f90` behave differently with clang and require
further investigation.
Original-commit: flang-compiler/f18@1ed3a3cfee
Reviewed-on: https://github.com/flang-compiler/f18/pull/810
Enhance `ArgumentAnalyzer` to do most of the work for this.
For each kind of operator that might have a user-defined form we follow
this process:
- analyze the arguments
- if the types and shapes match the intrinsic operator do the usual
processing
- otherwise attempt to interpret it as a user-defined operator with
`TryDefinedOp`
When we fail to resolve an operator, produce different errors depending
on whether there is a user-defined operator available or not.
If there is, report that neither user-defined nor intrinsic operator
worked. If there is not, describe the rules for the intrinsic operator.
In either case, include the type(s) of the operand(s).
Most of the uses of `ArgumentAnalyzer` are in helper functions that
apply to classes of operators.
For consistency, rename `BinaryOperationHelper` to `NumericBinaryOperator`
and `LogicalHelper` to `LogicalBinaryHelper` and introduce `NumericUnaryHelper`
for unary `+` and `-`. `.NOT.` and `//` are not implemented in helpers.
Replace `success_` with `fatalErrors_` in `ArgumentAnalyzer` for
consistency with `ExpressionAnalyzer`.
Add `NumericOperator` and `LogicalOperator` enums to `Fortran.h` to go
with `RelationalOperator`. Add `AddFortran` functions to each to convert
to a Fortran source string. `RelationalOperator` also has `AllFortranNames`
because there are multiple names for each operator. This replaces
`LogicalOperator` in `expression.h` and the string representation of
the operators in `formatting.cc`.
Original-commit: flang-compiler/f18@3bb9d664e8
Reviewed-on: https://github.com/flang-compiler/f18/pull/807
Relax checking when irrelevant due to INTENT(IN)
Add and pass call14.f90 test on VALUE
Allow ASYNCHRONOUS/VOLATILE to apply to host/USE associated entities, add tests
Pass call06
Check C827 & C828, fix tests
Original-commit: flang-compiler/f18@df6cb83794
Reviewed-on: https://github.com/flang-compiler/f18/pull/801
Convert some CharBlock references to values
Replace more pointers with reference wrappers
Restore object references that were converted to value semantics in an earlier commit
Use Reference<> in Scope
Fix new component iterator
Document pitfall that bit me
final tweaks before rebasing and merging
Rebasing
Original-commit: flang-compiler/f18@87874af934
Reviewed-on: https://github.com/flang-compiler/f18/pull/788
During the symbol tests, OpenMP directives (start with "!$omp")
line needs to be saved for 1.f90 and 2.f90. Also moved "OPTIONS:"
detection to common.sh as "$USER_OPTIONS"
Original-commit: flang-compiler/f18@7d4e8e8ad5
The major changes are:
1) changed the non-nullptr type to reference
2) changed ResolveOmpObject to use std::visit
3) the rest of the changes are about positions and naming
Original-commit: flang-compiler/f18@93debe59f3
PR#753 changed the `OmpObject` to be:
```
struct OmpObject {
UNION_CLASS_BOILERPLATE(OmpObject);
std::variant<Designator, /*common block*/ Name> u;
};
```
This commit adjust the logic flow for `ResolveOmpObject` based on
the above parse tree change.
For an `OmpObject`,
```
if (Designator) {
if (DataRef.Name) {
// Resolve Names
} else {
// ResolveDesignator
// AnalyzeExpr
if (Designator.Substring) {
// Error
}
// other checks like StructureComponent, ArrayElement, etc.
}
} else if (Name) {
// Resolve COMMON block
}
```
Original-commit: flang-compiler/f18@e5c1b92c15
DSA stands for Data-Sharing Attribute. This work is part of the
Name Resolution for OpenMP framework (data-refs on clauses part)
Based on 2.15.3: A list item that specifies a given variable may
not appear in more than one clause on the same directive, except that
a variable may be specified in both firstprivate and lastprivate clauses.
Through a temporary `std::set` of `const Symbol *` to keep track of
all the symbols on a certain OpenMP directive, we can determine whether
a variable `Name` (or `Symbol`, more accurately) has already appeared on
another DSA clause already, with the exception of FIRSTPRIVATE clause
and LASTPRIVATE clause. This rule applies to `/COMMON block/` also and
the source provenance shows on error message points to the `Name` between
slashes.
Added two more tests and changed some existing tests to accommodate
this commit. I intend to keep the `omp-clause-validity01.f90` test to
do the validity checks only.
Original-commit: flang-compiler/f18@0d7828c21e
